<!DOCTYPE html>
<form method="post"   action="http://1.aweek.sinaapp.com/activity/join">
aid:<input type="text"         name="aid" ><br/>
uid:<input type="text"         name="uid" ><br/>
owner:<input type="text"         name="owner" ><br/>
<input type="submit"  value="submit">
</form>

</html>